Natural Botanical
Casuarina Pods 25 Pack
Product Details
Best For
Shrimp tanks, planted aquariums, blackwater-style setups, betta tanks
Safe For
Freshwater shrimp, snails, bettas, nano fish, and invertebrates when prepared as directed
Prep
Rinse first; soak or boil to release initial tannins
Why It Works
Product Highlights
01
Biofilm Grazing Surface
Their intricate, textured structure develops biofilm within days of submersion — a steady food source for Neocaridina, Caridina, and shrimplets.
02
Natural Tannin Release
Slowly releases tannins and humic substances over weeks, helping create a more natural, shaded blackwater-style look for bettas, shrimp, and nano fish.
03
Long-Lasting Aquascape Detail
A sculptural, sea-urchin-like form that looks natural in any planted tank. Lasts several months before fully breaking down.
How to Use
Prep & Placement
Quick Setup Checklist
- Rinse under warm water to remove dust
- Boil 10–15 minutes or soak 24–48 hours to release initial tannins
- Sink to the bottom or wedge into hardscape
- Replace every 4–8 weeks as it breaks down naturally
- Safe to use multiple pieces for higher tannin output
Pairs Well With
Build a Better Shrimp Tank
Botanicals work best alongside mosses, plants, and shrimp food. Build a complete natural setup.
Common Questions
Casuarina Pods 25 Pack FAQ
Are Casuarina Pods safe for shrimp?
Yes — 100% natural and untreated. No coatings, no additives, no pesticides. Aquarium-safe when rinsed as directed. Commonly used in shrimp, snail, and nano fish aquariums.
Will they discolor the water?
They may gently tint the water amber as mild tannins release over time. The effect is gradual. Pre-soaking before use reduces the initial intensity.
How many should I use?
1–3 pods per tank depending on size and desired tannin level. Smaller nano tanks need fewer; larger tanks or stronger blackwater-style setups can use more.
What is the free shipping threshold?
Free shipping on plants and dry goods at $75+.
Do I need to prepare them before adding to my tank?
Rinse them thoroughly first. Boiling for 10–15 minutes or soaking for 24–48 hours helps them sink faster and releases the initial tannin burst before they enter your aquarium.
How long do they last?
Casuarina pods break down very slowly underwater — typically lasting several months in a stable aquarium. Replace as they fully decompose.
How is it shipped?
Packed securely and shipped Monday through Thursday via standard ground shipping. Plants and dry goods ship free at $75+. Transit times vary by location.
Can I order this with livestock?
Yes. Dry goods can ship together with livestock orders.
Why Order From Razz Aquatics
Packed With Care. Every Order.
Every product we stock is chosen and tested for aquarium use. We run over 100 dedicated aquariums on-site — we use these products ourselves. Family-owned, packed in-house, and backed without fine print.
100+
Dedicated aquariums on-site
48+
States served with plant & dry good shipping
4.9★
Average customer rating across all reviews
$75+
Free shipping on plants & dry goods
Aquarium Safe
Ships Mon–Thu
Packed In-House
Family-Owned
